<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title></title>

    <!-- Bootstrap -->
    <link rel="stylesheet" href="https://cdn.staticfile.org/twitter-bootstrap/3.4.0/css/bootstrap.min.css">
    <link rel="stylesheet" href="https://cdn.bootcss.com/font-awesome/4.4.0/css/font-awesome.min.css">

    <!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
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      <script src="https://cdn.bootcss.com/html5shiv/3.7.2/html5shiv-printshiv.min.js"></script>
      <script src="https://cdn.bootcss.com/respond.js/1.4.2/respond.js"></script>
    <![endif]-->
    <style media="screen">
      body{
        /* width:100%; */
        height:100%;
        position:relative;
        /* text-align:center;
        margin:0 auto; */
      }
      .centerfather{
        /* position:relative; */
        width:200px;
        height:600px;
      }
      .center{
        padding:10px;
        position:absolute;
        left:50%;
        top:50%;
        transform:translate(-50%, -50%);
        background:#ddd;
      }
    </style>
  </head>
  <body>
    <div class="centerfather">
      <div class="center">
        dasdas
      </div>
    </div>

    <!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
    <script src="http://libs.baidu.com/jquery/1.11.1/jquery.min.js"></script>
    <!-- Include all compiled plugins (below), or include individual files as needed -->
    <script src="https://cdn.staticfile.org/twitter-bootstrap/3.4.0/js/bootstrap.min.js"></script>
  </body>
</html>
